Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001285
11/12/99
RUDBECKIA INSECT PROBLEMS
Aphids suck sap from the plants.
Goldenglow sawfly may completely defoliate plants. The
larvae are gray with dark stripes. No chemical control is
listed.
Four-lined plant bug causes round, brown, sunken spots on
the leaves. The injury is often mistaken for a disease.
Related information.
Pesticide Recommendations
Aphids on Ornamentals
Four-lined Plant Bug
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This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
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